diff options
Diffstat (limited to 'src/plugins/platforms')
| -rw-r--r-- | src/plugins/platforms/cocoa/qcocoabackingstore.mm | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoabackingstore.mm b/src/plugins/platforms/cocoa/qcocoabackingstore.mm index 57a03905ab..091453785e 100644 --- a/src/plugins/platforms/cocoa/qcocoabackingstore.mm +++ b/src/plugins/platforms/cocoa/qcocoabackingstore.mm @@ -163,9 +163,11 @@ void QCocoaBackingStore::flush(QWindow *window, const QRegion ®ion, const QPo const qreal devicePixelRatio = m_image.devicePixelRatio(); // If the flushed window is a content view, and not in unified toolbar mode, - // we can get away with copying the backingstore instead of blending. - const NSCompositingOperation compositingOperation = static_cast<QCocoaWindow *>( - window->handle())->isContentView() && !windowHasUnifiedToolbar() ? + // and is fully opaque, we can get away with copying the backingstore instead + // of blending. + QCocoaWindow *cocoaWindow = static_cast<QCocoaWindow *>(window->handle()); + const NSCompositingOperation compositingOperation = cocoaWindow->isContentView() + && cocoaWindow->isOpaque() && !windowHasUnifiedToolbar() ? NSCompositingOperationCopy : NSCompositingOperationSourceOver; #ifdef QT_DEBUG |